公开(公告)号：US06836151B1

公开(公告)日：2004-12-28

申请号：US10781334

申请日：2004-02-17

申请人： Cameron McClintock ,  Richard G. Cliff ,  Bonnie I. Wang

发明人： Cameron McClintock ,  Richard G. Cliff ,  Bonnie I. Wang

IPC分类号： H03K190195

CPC分类号： H03K19/018585

摘要： Circuitry is provided to individually configure each I/O of an integrated circuit to be compatible with a different LVTTL I/O standards. This can be done with only one I/O supply voltage, where that voltage is the highest of the I/O voltages needed in a particular application. The circuitry operates by regulating the output voltage of the I/O cell so that it is above the VOH and below the maximum VIH for the LVTTL standard for which it will comply with. Since each I/O cell is individually configurable, any I/O can drive out to any LVTTL specification.

摘要翻译： 提供电路以单独配置集成电路的每个I / O以与不同的LVTTL I / O标准兼容。 这可以通过仅一个I / O电源电压完成，其中该电压是特定应用中所需的I / O电压中最高的。 电路通过调节I / O单元的输出电压进行操作，使其高于VOH并低于其符合的LVTTL标准的最大VIH。 由于每个I / O单元都可单独配置，任何I / O都可以驱动到任何LVTTL规范。

公开(公告)号：US06714050B2

公开(公告)日：2004-03-30

申请号：US09898183

申请日：2001-07-03

申请人： Cameron McClintock ,  Richard G. Cliff ,  Bonnie I. Wang

发明人： Cameron McClintock ,  Richard G. Cliff ,  Bonnie I. Wang

IPC分类号： H03K190195

CPC分类号： H03K19/17744 ,  H03K19/018585

摘要： Circuitry is provided to individually configure each I/O of an integrated circuit to be compatible with a different LVTTL I/O standards. This can be done with only one I/O supply voltage, where that voltage is the highest of the I/O voltages needed in a particular application. The circuitry operates by regulating the output voltage of the I/O cell so that it is above the VOH and below the maximum VIH for the LVTTL standard for which it will comply with. Since each I/O cell is individually configurable, any I/O can drive out to any LVTTL specification.